"box of birds" meaning in English

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  "pos": "noun",
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          "word": "box of fluffy ducks"
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          "ref": "2012, C.K. Stead, Risk, →ISBN:",
          "text": "They were “all a box of birds etc” – and there was news of how the All Blacks were doing in the Tri Nations.",
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        {
          "ref": "2014, Sandra Knight, Fringe Benefits, →ISBN, page 45:",
          "text": "\"And how are things with you today?” Sue asked as she rearranged Moira's cape. “A box of birds thanks,”",
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        "(New Zealand, dated) Alternative form of box of fluffy ducks"
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        },
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          "ref": "2014, Sandra Knight, Fringe Benefits, →ISBN, page 45:",
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  "word": "box of birds"
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